WorksheetsAIR Biology Review #3
Total questions: 62
Worksheet time: 2hrs 28mins
Name
Class
Date
1.
What process is going on in this photo?
a)
Transcription
b)
Translation
c)
Replication
d)
All the above
2.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
3.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
4.
In a certain insect, round wings (R) are dominant to pointed wings (r). Which cross will produce the greates number of genotypic and phenotypic variations?
a)
rr X rr
b)
Rr X Rr
c)
Rr X RR
d)
RR X RR
5.
Which of these best describes the initial change caused by a DNA mutation?
a)
a change in the swquence of base pairs
b)
a change in the production of enzymes
c)
a change in the number of nucleosomes within a cell
d)
a change in the number of hydrogen bonds between the bases
6.
How many daughter cells are formed in meiosis?
a)
0
b)
1
c)
2
d)
4
7.
Which of these shows the steps by which proteins are coded and synthesized?
a)
RNA-> DNA-> protein
b)
DNA-> RNA-> protein
c)
protein-> RNA-> DNA
d)
protein-> DNA-> RNA
8.
Two gametes containing 20 chromosomes fuse during fertilization. How many chromosomes will the zygote?
a)
10
b)
20
c)
40
d)
80
9.
A cell with 24 chromosomes undergoes mitosis. How many chromosomes will each daughter cell have?
a)
6
b)
12
c)
24
d)
48
10.
Look the the cross below.
Yy x Yy
In this cross, two yellow seed plants are crossed. What are the genotypes for the offspring in this cross?
Yy x Yy
In this cross, two yellow seed plants are crossed. What are the genotypes for the offspring in this cross?
a)
Yy, Yy, Yy, Yy
b)
YY, Yy, Yy, yy
c)
YY, YY, Yy, Yy
d)
YY, YY, YY, YY
11.
Which is primarily composed of the molecules cytosine, guanine, adenine, and thymine?
a)
lipid
b)
DNA
c)
RNA
d)
protein
12.
Examine the DNA sequence:
TAC CCG ATC AAA GCC
Which represents the complementary strand of DNA?
TAC CCG ATC AAA GCC
Which represents the complementary strand of DNA?
a)
CGT TTA GCT GGG ATT
b)
ATG GGC TAG TTT CGG
c)
GCA AAT CGA TAA
d)
UCA CCG AUC AAA GCC
13.
Energy for most chemical reactions in cells is supplied by which of the following molecules?
a)
DNA
b)
ATP
c)
RNA
d)
Hemoglobin
14.
What is the process shown in the diagram above?
a)
mitosis
b)
cytokinesis
c)
prophase I
d)
Prophase II
15.
Responsible for creating sex cells are gametes called sperm and egg.
a)
Meiosis
b)
Mitosis
c)
Metaphase I
d)
Photosynthesis
16.
If a cell has 2 of every chromosome. 1 of each pair from the maternal parent and 1 of each pair from the paternal parent.
a)
homologous pairs
b)
replicated chromosomes
c)
haploid
d)
diploid
17.
A Skin has 2 of every chromosome. Which term means 1 of each chromosome?
a)
Meiosis
b)
Mitosis
c)
Haploid
d)
Diploid
18.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
19.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
20.
What is one of the advantages, why is it better to reproduce sexually versus asexually?
a)
survival of the fittest
b)
overproduction
c)
genetic variation
d)
cloning
21.
Crossing over helps promote
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
22.
Chromosomes exchange genetic material during
a)
crossing over
b)
replication
c)
synthesis
d)
translation
23.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
24.
Females have ____ and males have _____ chromosomes.
a)
XX, XY
b)
XY, XX
c)
XX, XX
d)
XY, XY
25.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
26.
A human being has a somatic cell that has 46 chromosomes. What is the haploid number found in a gamete?
a)
23
b)
46
c)
69
d)
92
27.
Cells spend 90% of their time in this stage of the cell cycle. This is the reason you would see most cells in this stage if viewed under a microscope.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Interphase
28.
Cell division occurs to allow for
a)
Growth
b)
Reproduction
c)
Repair
d)
All of the above
29.
What do the cells look like at the end of mitosis?
a)
different from original cell
b)
similar to the original cell
c)
identical to the original cell
d)
none of these
30.
What type(s) of cells undergo mitosis?
a)
sex cells
b)
gametes
c)
body cells
d)
sperm and egg cells
31.
What is the purpose of DNA replication?
a)
Cut the DNA
b)
Make more cells
c)
Apoptosis
d)
Duplicate the DNA
32.
What do we call DNA replication since new DNA has 1 parent strand and 1 new strand?
a)
Conservative
b)
Semiconservative
c)
Dispersive
33.
What is the backbone of DNA made of?
a)
Nitrogen bases
b)
Amino acids
c)
Double H
d)
Sugar & Phosphate
34.
Each DNA molecule created contain one NEW strand and one OLD strand
a)
True
b)
False
35.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand:
GTAGTCA
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
36.
The main function of tRNA is to...
a)
carry a message that, when translated, forms proteins
b)
form a portion of ribosomes
c)
string together complementary RNA and DNA strands
d)
bring amino acids from the cytoplasm to the ribosomes
37.
What is the term for a three-nucleotide sequence that codes for an amino acid?
a)
base
b)
codon
c)
amine
d)
serine
38.
Which of the following is the site of transcription?
a)
vacuole
b)
lysosome
c)
nucleus
d)
ribosome
39.
Which of the following is the site of translation?
a)
vacuole
b)
lysosome
c)
nucleus
d)
ribosome
40.
Which of the following is created in the nucleus and carries the genetic code to the cytoplasm?
a)
DNA
b)
tRNA
c)
mRNA
d)
rRNA
41.
A tRNA that carries the amino acid methionine pairs with which type of codon?
a)
serine codon
b)
tRNA codon
c)
start codon
d)
anticodon
42.
What would happen if we did not have start codons?
a)
Polypeptide chains would continue to grow
b)
Amino acids would bind to tRNA
c)
Protein synthesis wouldn't occur
d)
mRNA would form a double strand
43.
In RNA, Uracil pairs with ______.
a)
cytosine
b)
adenine
c)
guanine
d)
thymine
44.
DNA holds the code for
a)
lipids
b)
carbohydrates
c)
protein
d)
sugar
45.
What amino acid is represented by the codon UUA?
a)
Phenylalanine
b)
Tyrosine
c)
Leucine
d)
Stop codon
46.
TT,tt,PP,pp,SS,ss are examples of alleles that are?
a)
homozygous
b)
heterozygous
c)
different
d)
homologous
47.
The exact genetic makeup of an organism, such as RR, Tt, PP is its?
a)
phenotype
b)
dominance
c)
genotype
d)
trait
48.
Y for yellow body is dominant over y for blue body. What alleles would produce yellow bodies?
a)
YY,yy
b)
Yy,yy
c)
YY only
d)
YY,Yy
49.
"The Great White Shark was 20 feet in length. Phenotype or Genotype?
a)
phenotype
b)
genotype
50.
A physical characteristic that can be passed from parent to offspring.
a)
behavior
b)
trait
c)
strong muscles
d)
ability to fly a plane.
51.
In a cross between a round(R)-yellow(Y) seeded plant and a wrinkled (r)- yellow(Y) seeded pea plant, green(y)-wrinkled (r) seeded offspring are produced.
(Next 2 questions will be about this information.)
a. What are the genotypes of parents?
a)
RrYy X rrYy
b)
RrYY X rrYy
c)
RrYy X RrYy
d)
RRYy X rrYy
e)
RRYy X RrYY
52.
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift
53.
Which of the following would result in a frameshift mutation?
a)
Insertions only
b)
Substitution only
c)
Deletion only
d)
Insertions and Deletions
54.
What type of chromosomal mutation has occurred?
a)
substitution
b)
insertion
c)
deletion
d)
nondisjunction
55.
A mutation in which only one nucleotide is altered is called a:
a)
Frameshift Mutation
b)
Deletion Mutation
c)
Point Mutation
d)
Insertion Mutation
56.
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
a)
Substitution
b)
Deletion
c)
Insertion
d)
Inversion
57.
A mutation is defined as:
a)
A change in the cell's structure
b)
Anything that changes in an embryo
c)
Any change in the physical features of a human
d)
A change in the DNA sequence
58.
ATTTGAGCC- Original
ATTGAGCC - Mutated
The example above is an example of a
ATTGAGCC - Mutated
The example above is an example of a
a)
Insertion- Frameshift
b)
Deletion- Substitution
c)
Deletion -Frameshift
d)
All of the above
59.
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
T-G-A-C-C-A
T-G-A-G-C-A
a)
Substitution
b)
Deletion
c)
Insertion
d)
Frameshift
60.
The survival of a species depends on its ability to adapt to changes in the environment. Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment?
a)
Mutations are a source of variation in the species
b)
Mutations are the cause of disease in the species
c)
Mutations are not harmful when they occur in somatic cells
d)
Mutations are always passed on to subsequent generations
61.
Genetic mutations can be...
a)
beneficial, harmful, or neutral
b)
beneficial only
c)
harmful only
d)
neutral only
62.
Would a mutation in the DNA of a skin cell be passed on to an organism's offspring?
a)
Yes, because any change to the DNA is passed on to the offspring
b)
Maybe. Sex cells only use half of the body's genetic code. It might get the copy of a gene that wasn't mutated.
c)
No. Only mutations that occur in the gametes (sex cells) are passed on to the offspring
d)
Without knowing the animal, it would be hard to tell whether or not the mutation would be passed on.
100 %
